The Mines of Moria

Long ago, back in the murky memory of my early days in London, I wrote about getting lost deep below the streets of London while trying to transfer from one Tube line to another. Thanks to London Geezer, I now know why it's so easy to get lost in the Monument/Bank stations, the two closest stations in our temporary apartment in the Square Mile. Below is a three-dimensional schematic of the two stations (which are more than a quarter mile apart) and their connecting corridors.



The D.C. Metro was definitely designed with simplicity in mind, if you compare it to this.

ADDED: Larger version of that diagram is here.